PCIII on standard 749S?
 

I was thinking of getting a full termi 54mm system for my 749S, but they're £2000 :o so I'm going to stick with the standard exhaust for now. Is it worth getting a PCIII and custom map to maximise what I've already got? Ideally I'm after a bit more low/mid range if possible and to iron out the hole in the torque at 5000rpm...